Across
- 1. organ filled with white blood cells; filters blood
- 3. largest part of the brain, which interprets information from the sensory organs; controls muscle actions and is responsible for intelligence, memory, and personality
- 4. body system that allows people to think, use the senses, move, and maintain important body processes
- 7. organ in which bile is stored until needed to digest food
- 9. body system that breaks down food to provide nutrients and energy
- 12. large brown organ to the right of the stomach that has many jobs
- 14. part of the brain that controls the heartbeat and breathing rate
- 15. substance produced in the thyroid that increases the rate at which the body uses energy
- 16. finger-shaped organ attached to the large intestine; made of lymphatic tissue
- 18. cell that is specialized to receive and send signals
- 19. body system of organs and tissues that help fight infections
Down
- 2. body system that produces chemical messengers called hormones, which regulate body processes
- 5. organ that stores urine until it can be pushed out of the body
- 6. two bean-shaped organs that filter blood and make urine
- 8. part of the brain that controls coordinated, smooth muscle activity
- 10. part of the nervous system that carries nerve signals between the brain and the body
- 11. fish-shaped organ behind the stomach that makes many kinds of enzymes needed for digestion
- 13. master gland of the body, which releases hormones to control other endocrine organs
- 17. body system that removes liquid waste from the body